Abstract: A prismatic advertising billboard having a body 1 elaborated as from a cardboard sheet 2 cut and bent in such a fashion as to show the shape of a box 3, in the interior of which are disposed profiles 4 and 5, also produced in cut and bent cardboard sheet, being that between the profiles 4 and 5 are mounted prismatic pieces 6 actuated in a synchronized manner by an electric motor 7; the electric motor 7 is connected to a long hexagonal axle 8 that crosses and is supported on the bearings 9 fixed to the profile 5, being that each one of the bearings 9 receives a pulley 10 through which the hexagonal axle passes 8; each one of the pulleys 10 incorporates a pin 11, elaborated so as to interfere in a connector 12, that is coupled by encasing in a triangular profile 13 elaborated in a cut and bent cardboard sheet 14.